Pkocess of xaxxng a jttix gas



n? .1930. J. a. GARNER 1,767,357

' PROCESS OF MAKING A FUEL GAS Filed larch 30, 1923 BY- M Q ATTORNEY Patented June 24, 1930.

UNITED STAITVESTPATEINT I OFFICE inane a. mm. or rrrrsn'uaon, rmmsxn vama, ASSIGNOR 'ro smnnann on.

nnvnnornmrr COMPANY, a'conromnon or nmwm rnocn'ss or nxnve a run. on

Application fled much :0, 102a eel-m No. eaa,m.', 1

This invention relates to the art of obtaining products from gas, and will be fully understood from the following description,

cracking equipment 2 which may be of any tion.

suitable type adapted to form carbon black. The latter is removed through an outlet 3. The lean gas resulting fromthe cracking is passed througha line 4 into a mixer 5 which also receives rich natural as through a line 6. From themixer the through a line 7 to the point at which it is to be utilized or stored.

With the declining production of natural gas, a more eflicient utilization of such-resource is desirable. In particular, since the average natural gas runs unnecessarily high in calorific value for ordinary consumption, a rational conservation would indicate the desirability of removing the excess fuel constituents in the form of valuable products and at the same time providing a finished as of suitable heatvalue for ordinary distribu- In'obtaining these results in accordance with the present invention, a gas of hi h calorific value, for example 1150 B. T. per cubic foot is initially partially decomposed, as by electric means or b being heated to a crackin temperature su cient to produce carbon lack and leave atail gas with a 3 calorific value of for example about 325 to 900 B. T. Urper cubic foot. This may be done in any convenient manner desired, as by passing throughretort tubes of perature, or for instance b bringing the high calorific gas, preh ate or not as desired, into admixture wit producer gas at a high temperature for example 1500 to 2000 F., in sufiicient proportion to raise the high B. T. U. g to a temperature of about 1200 to 1400 The c'arbon'bla-ck is collected by suitably cooled plates or chambers, and the tail gas after further cooling if necessary, is

blended with sufficient raw high B. T. U.

lended gas flows B ral gas havinga suitable tem gas, especially natural gas, to give a resultant mixture of for example 800 B. T: U., or whatever the needs in view for the finished gas a finished combustible gas of proper heat value.

'What I claim is:

prising decomposing a natural gas havin a T. U. content in excess of 800 per cu ic foot to produce carbon black essthan is commercially desirable, collecting said residual as, collecting the carbon black, and mixin%t e residualvgas with natu- T. U. content in excess of commercial requirements, in an amount sufficient to raise the heating value of the mixed gas at least substantially cubic foot.

JAMES B. GARNER.

There is thus obtained a yield to 800 T. U. per

Process of making afuel gas having a theri 1 mal value of substantially 800 B. T. U. per icubic foot and carbon black fromnatilral' gas of undesirably high B. T. U. content, comand a residual gas having a thermal value substantially 

